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rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4321 1-.... } 2700 jiffies s: 6161 root: 0x2/T rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6381 Comm: syz.3.616 Tainted: G W 6.1.122-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:444 [inline] RIP: 0010:cpu_online include/linux/cpumask.h:1030 [inline] RIP: 0010:trace_hrtimer_expire_exit include/trace/events/timer.h:286 [inline] RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1692 [inline] RIP: 0010:__hrtimer_run_queues+0x657/0xe50 kernel/time/hrtimer.c:1753 Code: 00 44 8b 3d 83 3c 21 0d 44 89 ff 89 de e8 91 d1 10 00 41 39 df 0f 86 ad 01 00 00 e8 23 d0 10 00 41 89 df 4c 89 f8 48 c1 e8 06 <48> 8d 3c c5 a8 06 9b 8e be 08 00 00 00 e8 d7 64 68 00 31 db 4c 0f RSP: 0018:ffffc900001e00c0 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff888073883b80 RDX: 0000000000010100 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffffc900001e0210 R08: ffffffff8179cc3f R09: fffffbfff1d360d6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b8f2a4c0 R13: 0000000000000001 R14: ffff8880b8f2a4c0 R15: 0000000000000001 FS: 00007ff3d95206c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7641c2af98 CR3: 0000000058f18000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline] __sysvec_apic_timer_interrupt+0x158/0x5b0 arch/x86/kernel/apic/apic.c:1124 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:bpf_tree_comp kernel/bpf/core.c:622 [inline] RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline] RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline] RIP: 0010:bpf_ksym_find kernel/bpf/core.c:698 [inline] RIP: 0010:is_bpf_text_address+0x130/0x2a0 kernel/bpf/core.c:732 Code: 48 8d 6c 6d 00 48 f7 dd 4c 8d a4 2b e0 fd ff ff 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 14 70 4a 00 4d 8b 24 24 <4c> 89 e7 4c 89 fe e8 a5 de f2 ff 4d 39 fc 76 0b e8 bb dc f2 ff 48 RSP: 0018:ffffc900001e0428 EFLAGS: 00000246 RAX: 1ffff11006989428 RBX: ffff888034c4a360 RCX: ffff888073883b80 RDX: 0000000000000100 RSI: 00007ff3d8785d29 RDI: ffffffffa0001fd0 RBP: 0000000000000000 R08: ffffffff8197bfab R09: fffffbfff2249c4d R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffa0000950 R13: dffffc0000000000 R14: 0000000000000001 R15: 00007ff3d8785d29 kernel_text_address+0x9f/0xd0 kernel/extable.c:125 __kernel_text_address+0x9/0x40 kernel/extable.c:79 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x25c/0x3c0 mm/slub.c:3674 skb_free_head net/core/skbuff.c:762 [inline] skb_release_data+0x5de/0x7a0 net/core/skbuff.c:791 skb_release_all net/core/skbuff.c:856 [inline] __kfree_skb+0x4c/0x60 net/core/skbuff.c:870 tcp_write_queue_purge+0x132/0x2f0 net/ipv4/tcp.c:3099 tcp_done_with_error+0x3d/0xc0 net/ipv4/tcp_input.c:4393 tcp_write_err net/ipv4/tcp_timer.c:70 [inline] tcp_write_timeout net/ipv4/tcp_timer.c:273 [inline] tcp_retransmit_timer+0x12ca/0x2800 net/ipv4/tcp_timer.c:547 tcp_write_timer+0x12e/0x280 net/ipv4/tcp_timer.c:676 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1549 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:__sanitizer_cov_trace_pc+0x41/0x60 kernel/kcov.c:221 Code: ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 <48> 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 RSP: 0018:ffffc9001b9e79c0 EFLAGS: 00000246 RAX: ffffffff81ecf252 RBX: ffffea0001f49780 RCX: ffff888073883b80 RDX: ffffc9000df82000 RSI: 000000000000f273 RDI: 0000000000000000 RBP: 1ffffd40003ba6d1 R08: ffffffff81ecf23b R09: fffffbfff1d360d6 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0001dd3680 R13: ffffea0001dd36b0 R14: ffffea0001dd3680 R15: ffffea0001dd3688 arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] page_fixed_fake_head include/linux/page-flags.h:216 [inline] _compound_head include/linux/page-flags.h:257 [inline] PageSlab include/linux/page-flags.h:487 [inline] __page_table_check_zero+0xe2/0x4b0 mm/page_table_check.c:144 page_table_check_free include/linux/page_table_check.h:46 [inline] free_pages_prepare mm/page_alloc.c:1460 [inline] free_pcp_prepare mm/page_alloc.c:1509 [inline] free_unref_page_prepare+0x12b6/0x15b0 mm/page_alloc.c:3384 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3479 free_slab mm/slub.c:2031 [inline] discard_slab mm/slub.c:2037 [inline] __unfreeze_partials+0x1b7/0x210 mm/slub.c:2586 put_cpu_partial+0x17b/0x250 mm/slub.c:2662 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422 kmem_cache_zalloc include/linux/slab.h:689 [inline] lsm_inode_alloc security/security.c:596 [inline] security_inode_alloc+0x24/0x110 security/security.c:1040 inode_init_always+0x943/0xc70 fs/inode.c:232 alloc_inode fs/inode.c:268 [inline] new_inode_pseudo+0x94/0x1d0 fs/inode.c:1063 sock_alloc net/socket.c:631 [inline] __sock_create+0x11f/0x930 net/socket.c:1514 sock_create net/socket.c:1606 [inline] __sys_socket_create net/socket.c:1643 [inline] __sys_socket+0x136/0x3a0 net/socket.c:1671 __do_sys_socket net/socket.c:1684 [inline] __se_sys_socket net/socket.c:1682 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1682 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff3d8785d29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff3d9520038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007ff3d8975fa0 RCX: 00007ff3d8785d29 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000000a RBP: 00007ff3d8801b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff3d8975fa0 R15: 00007ffe62485c78 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/01/02 03:20 | linux-6.1.y | 563edd786f0a | d3ccff63 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/11/26 15:04 | linux-6.1.y | e4d90d63d385 | e9a9a9f2 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/10/16 23:30 | linux-6.1.y | aa4cd140bba5 | 666f77ed | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/10/08 11:18 | linux-6.1.y | aa4cd140bba5 | 402f1df0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/10/08 08:48 | linux-6.1.y | aa4cd140bba5 | 402f1df0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/10/01 18:23 | linux-6.1.y | aa4cd140bba5 | ea2b66a6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/09/27 11:40 | linux-6.1.y | e526b12bf916 | 9314348a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/09/25 03:38 | linux-6.1.y | e526b12bf916 | 5643e0e9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/08/28 18:29 | linux-6.1.y | ee5e09825b81 | ef3de9e8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/08/03 17:11 | linux-6.1.y | 48d525b0e463 | 1786a2a8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/08/03 14:21 | linux-6.1.y | 48d525b0e463 | 1786a2a8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/07/26 10:37 | linux-6.1.y | c18e82d3ee44 | 3f86dfed | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/07/21 13:41 | linux-6.1.y | 9b3f9a5b12dc | b88348e9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer | ||
2024/06/21 02:49 | linux-6.1.y | eb44d83053d6 | dac2aa43 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-perf | INFO: rcu detected stall in tcp_write_timer |